Inserting Dp Slaves - Siemens SINUMERIK 840Di sl Commissioning Manual

PROFIBUS DP Communication
8.3 Creating a PROFIBUS configuration
Figure 8-5 HW Config: Insert modules, e.g. SINAMICS S120
8.3.2

Inserting DP slaves

In principle, both PROFIBUS interfaces have the same functionality. To be able to utilize the
available transmission capacity optimally, it is recommended that drive and I/O modules be
operated on dedicated PROFIBUS line in each case.
● Drive modules at the PROFIBUS interface (X101) corresponding to Slot X2.
● I/O modules at PROFIBUS interfaces (X102) corresponding to Slot X1.
The division of the drive and I/O modules is basically random. The following rules must be
met:
● Equidistant DP communication must be configured for the PROFIBUS interface to which
● The PROFIBUS interface to which the I/O modules are eventually connected can be
● In principle, equidistant DP communication can be configured for both PROFIBUS
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the drive modules are connected. Besides, this interface can be operated only in the DP
Master mode.
operated in the DP Master as well as DP Slave mode.
Please refer to the relevant SIMATIC documentation for how to connect the PLC to the
higher-level DP master as a DP slave.
interfaces simultaneously. The isochronous time must be set as identical for both the
interfaces.
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Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
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